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Difference between revisions of "Module:Stat"
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Line 19: | Line 19: | ||
local q = tonumber(frame.args[3]) | local q = tonumber(frame.args[3]) | ||
if a and b and q then | if a and b and q then | ||
− | return string.format("%.f", log(1 - q / 100) / log(1 - a / b)) | + | return string.format("%.f", math.log(1 - q / 100) / math.log(1 - a / b)) |
else | else | ||
return "undefined" | return "undefined" |
Revision as of 08:17, 12 October 2015
Documentation for this module may be created at Module:Stat/doc
local Stat = {}
function Stat.rate(frame)
local a = tonumber(frame.args[1])
local b = tonumber(frame.args[2])
local n = frame.args[3] and tonumber(frame.args[3]) or 1
local f = frame.args["format"] and tonumber(frame.args["format"]) or 2
if a and b and n and f then
return string.format("%." .. f .. "f", 100 * (1 - (1 - a / b) ^ n))
else
return "undefined"
end
end
function Stat.trials(frame)
local a = tonumber(frame.args[1])
local b = tonumber(frame.args[2])
local q = tonumber(frame.args[3])
if a and b and q then
return string.format("%.f", math.log(1 - q / 100) / math.log(1 - a / b))
else
return "undefined"
end
end
function Stat.error(frame)
local a = tonumber(frame.args[1])
local b = tonumber(frame.args[2])
local f = frame.args["format"] and tonumber(frame.args["format"]) or 2
local pc = frame.args["percentile"] and tonumber(frame.args["percentile"]) or 1.96
if a and b and f and pc then
local p = a / b
local se = math.sqrt(p * (1 - p) / b)
return string.format("%." .. f .. "f", 100 * (pc * se + 0.5 / b))
else
return "undefined"
end
end
return Stat